Write an expression that simplifies to $x^{- 4}$

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Solution

An expression that simplifies to $x^{- 4}$
$x^{- 4} = x^{8} \cdot x^{- 12}$ (Using exponent law $a^{m + n} = a^{m} \cdot a^{n}$ )
Hence, the expression is $x^{- 4} = x^{8} \cdot x^{- 12}$

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